X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstdio%2Ffgetc.c;h=dc8dfed01c281238cfcede7da3707aaf518ce28c;hb=e1c526e9bad3f6e69391e94059096145390508d3;hp=5837a74178f596362053de7dfadff5e924baa960;hpb=7e1ea4998255982bbf93539e941991bcf40d2813;p=pdclib diff --git a/functions/stdio/fgetc.c b/functions/stdio/fgetc.c index 5837a74..dc8dfed 100644 --- a/functions/stdio/fgetc.c +++ b/functions/stdio/fgetc.c @@ -1,5 +1,3 @@ -/* $Id$ */ - /* fgetc( FILE * ) This file is part of the Public Domain C Library (PDCLib). @@ -8,21 +6,29 @@ #include -#include <_PDCLIB_glue.h> - #ifndef REGTEST +#include <_PDCLIB_io.h> -int fgetc( struct _PDCLIB_file_t * stream ) +int _PDCLIB_fgetc_unlocked( FILE * stream ) { if ( _PDCLIB_prepread( stream ) == EOF ) { return EOF; } - if ( stream->ungetidx > 0 ) - { - return stream->ungetbuf[ --(stream->ungetidx) ]; - } - return stream->buffer[stream->bufidx++]; + + char c; + + size_t n = _PDCLIB_getchars( &c, 1, EOF, stream ); + + return n == 0 ? EOF : (unsigned char) c; +} + +int fgetc( FILE * stream ) +{ + _PDCLIB_flockfile( stream ); + int c = _PDCLIB_fgetc_unlocked( stream ); + _PDCLIB_funlockfile( stream ); + return c; } #endif